sys/arch/hp700/gsc/oosiop_gsc.c

   1 /*      $NetBSD: oosiop_gsc.c,v 1.7 2009/05/08 09:33:58 skrll Exp $     */
   2
   3 /*
   4  * Copyright (c) 2001 Matt Fredette.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. The name of the author may not be used to endorse or promote products
  15  *    derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /*-
  30  * Copyright (c) 2001,2002 Izumi Tsutsui.  All rights reserved.
  31  *
  32  * Redistribution and use in source and binary forms, with or without
  33  * modification, are permitted provided that the following conditions
  34  * are met:
  35  * 1. Redistributions of source code must retain the above copyright
  36  *    notice, this list of conditions and the following disclaimer.
  37  * 2. Redistributions in binary form must reproduce the above copyright
  38  *    notice, this list of conditions and the following disclaimer in the
  39  *    documentation and/or other materials provided with the distribution.
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
  42  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  43  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  44  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  45  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  47  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  48  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  49  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  50  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  51  */
  52
  53 /*      $OpenBSD: siop_gsc.c,v 1.1 1998/11/04 17:01:35 mickey Exp $     */
  54
  55 /*
  56  * Copyright (c) 1998 Michael Shalayeff
  57  * All rights reserved.
  58  *
  59  * Redistribution and use in source and binary forms, with or without
  60  * modification, are permitted provided that the following conditions
  61  * are met:
  62  * 1. Redistributions of source code must retain the above copyright
  63  *    notice, this list of conditions and the following disclaimer.
  64  * 2. Redistributions in binary form must reproduce the above copyright
  65  *    notice, this list of conditions and the following disclaimer in the
  66  *    documentation and/or other materials provided with the distribution.
  67  * 3. The name of the author may not be used to endorse or promote products
  68  *    derived from this software without specific prior written permission.
  69  *
  70  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  71  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  72  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  73  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  74  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  75  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  76  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  77  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  78  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  79  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  80  */
  81
  82 #include <sys/cdefs.h>
  83 __KERNEL_RCSID(0, "$NetBSD: oosiop_gsc.c,v 1.7 2009/05/08 09:33:58 skrll Exp $");
  84
  85 #include <sys/param.h>
  86 #include <sys/systm.h>
  87 #include <sys/device.h>
  88 #include <sys/buf.h>
  89 #include <sys/malloc.h>
  90
  91 #include <dev/scsipi/scsi_all.h>
  92 #include <dev/scsipi/scsipi_all.h>
  93 #include <dev/scsipi/scsiconf.h>
  94
  95 #include <machine/cpu.h>
  96 #include <machine/intr.h>
  97 #include <machine/iomod.h>
  98 #include <machine/autoconf.h>
  99 #include <machine/bus.h>
 100
 101 #include <dev/ic/oosiopreg.h>
 102 #include <dev/ic/oosiopvar.h>
 103
 104 #include <hp700/dev/cpudevs.h>
 105 #include <hp700/gsc/gscbusvar.h>
 106 #include <hp700/hp700/machdep.h>
 107
 108 #define OOSIOP_GSC_RESET        0x0000
 109 #define OOSIOP_GSC_OFFSET       0x0100
 110
 111 int oosiop_gsc_match(device_t, cfdata_t, void *);
 112 void oosiop_gsc_attach(device_t, device_t, void *);
 113 int oosiop_gsc_intr(void *);
 114
 115 CFATTACH_DECL_NEW(oosiop_gsc, sizeof(struct oosiop_softc),
 116     oosiop_gsc_match, oosiop_gsc_attach, NULL, NULL);
 117
 118 int
 119 oosiop_gsc_match(device_t parent, cfdata_t cf, void *aux)
 120 {
 121         struct gsc_attach_args *ga = aux;
 122         bus_space_handle_t ioh;
 123         int rv = 1;
 124
 125         if (ga->ga_type.iodc_type != HPPA_TYPE_FIO ||
 126             ga->ga_type.iodc_sv_model != HPPA_FIO_SCSI)
 127                 return 0;
 128
 129         if (bus_space_map(ga->ga_iot, ga->ga_hpa,
 130             OOSIOP_GSC_OFFSET + OOSIOP_NREGS, 0, &ioh))
 131                 return 0;
 132
 133
 134         bus_space_unmap(ga->ga_iot, ioh, OOSIOP_GSC_OFFSET + OOSIOP_NREGS);
 135         return rv;
 136 }
 137
 138 void
 139 oosiop_gsc_attach(device_t parent, device_t self, void *aux)
 140 {
 141         struct oosiop_softc *sc = device_private(self);
 142         struct gsc_attach_args *ga = aux;
 143         bus_space_handle_t ioh;
 144
 145         sc->sc_dev = self;
 146         sc->sc_bst = ga->ga_iot;
 147         sc->sc_dmat = ga->ga_dmatag;
 148         if (bus_space_map(sc->sc_bst, ga->ga_hpa,
 149             OOSIOP_GSC_OFFSET + OOSIOP_NREGS, 0, &ioh))
 150                 panic("%s: couldn't map I/O ports", __func__);
 151         if (bus_space_subregion(sc->sc_bst, ioh,
 152             OOSIOP_GSC_OFFSET, OOSIOP_NREGS, &sc->sc_bsh))
 153                 panic("%s: couldn't get chip ports", __func__);
 154
 155         sc->sc_freq = ga->ga_ca.ca_pdc_iodc_read->filler2[14];
 156         if (sc->sc_freq == 0)
 157                 sc->sc_freq = 50000000;
 158
 159         sc->sc_chip = OOSIOP_700;
 160         sc->sc_id = ga->ga_scsi_target;
 161
 162         /*
 163          * Reset SCSI subsystem.
 164          */
 165         bus_space_write_1(sc->sc_bst, ioh, OOSIOP_GSC_RESET, 0);
 166         DELAY(1000);
 167
 168         /*
 169          * Call common attachment
 170          */
 171         oosiop_attach(sc);
 172
 173         (void)hp700_intr_establish(self, IPL_BIO,
 174             oosiop_gsc_intr, sc, ga->ga_int_reg, ga->ga_irq);
 175 }
 176
 177 /*
 178  * interrupt handler
 179  */
 180 int
 181 oosiop_gsc_intr(void *arg)
 182 {
 183         struct oosiop_softc *sc = arg;
 184         int rv;
 185
 186         rv = oosiop_intr(sc);
 187
 188         /* Blink the LED. */
 189         hp700_led_blink(HP700_LED_DISK);
 190
 191         return rv;
 192 }